But only if r=2
On Tue, 12 Dec 2006, Björn Helgason wrote:
(x+y)^r -:(2*x*y)+ (x^r)+(y^r)
2006/12/12, Roger Hui <[EMAIL PROTECTED]>:
But one counterexample does make a disproof.
In this case there are two, yours and Helgason's.
----- Original Message -----
From: Ralph G Selfridge <[EMAIL PROTECTED]>
Date: Monday, December 11, 2006 5:39 pm
Subject: Re: [Jgeneral] exp(y). sin(y) and accuracy.
> x=.3 y=.3 r=.2
> (x^r)+y^r 18 (x+y)^r 36
> One example does not a proof make
>
> On Sun, 10 Dec 2006, Björn Helgason wrote:
>
> > x=.2
> > y=.2
> > r=.2
> > (x^r)+(y^r)
> > 8
> > (x+y)^r
> > 16
> >
> > 2006/12/9, Chris Burke <[EMAIL PROTECTED]>:
> >>
> >> The mistake is the assumption that:
> >>
> >> (x^r)+(y^r) is the same as (x+y)^r
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
--
Björn Helgason, Verkfræðingur
Fugl&Fiskur ehf, Þerneyjarsund 23, Box 127
801 Grímsnes ,t-póst: [EMAIL PROTECTED]
Skype: gosiminn, gsm: +3546985532
Landslags og skrúðgarðagerð, gröfuþjónusta
http://groups.google.com/group/J-Programming
Tæknikunnátta höndlar hið flókna, sköpunargáfa er meistari
einfaldleikans
góður kennari getur stigið á tær án þess að glansinn fari af skónum
/|_ .-----------------------------------.
,' .\ / | Með léttri lund verður |
,--' _,' | Dagurinn í dag |
/ / | Enn betri en gærdagurinn |
( -. | `-----------------------------------'
| ) | (\_ _/)
(`-. '--.) (='.'=)
`. )----' (")_(")
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
